31 October (releases)

On 31 October, a number of things set in or relevant to the Doctor Who universe were released or published.

• 1964 - "Planet of Giants" was broadcast on BBC1, beginning season 2 of Doctor Who.
• 1970 - Part one of the TV Comic story Trial of Fire was published.
• 1985 - Timeview was published by Who Dares Publishing.
• 1991 - DWM 180 was published by Marvel Comics.
• 2003 - The audio stories Master^[1] and The Wormery^[2] were released by Big Finish Productions.
• 2007 - The Doctor Who: Battles in Time comic story House Pests was published.
• 2008
  • The Diet of Worms was released by Big Finish.
  • Sisters of the Flame was broadcast on BBC Radio 7.
• 2009 - Regeneration was broadcast on Disney XD, beginning the K9 series.
• 2011
  • The Gunpowder Plot was released by BBC Wales Interactive.
  • The Blu-ray box set The Sarah Jane Adventures: The Complete Fourth Series was released in the UK.
• 2012 - DWDVDF 100 was published by GE Fabbri Ltd.
• 2014 - The Widow's Assassin was released by Big Finish.
• 2015 - The Zygon Invasion was broadcast on BBC One.
• 2017 - The Ultimate Foe was published by Obverse Books.
• 2018 - TCH 16 was published by Hachette Partworks.
• 2019 - DWFC 162 was published by Eaglemoss Collections.
• 2021 - The Halloween Apocalypse was broadcast on BBC One, launching Doctor Who: Flux.
• 2023
  • The Whoniverse ident was released on social media platforms.
  • The Faction Paradox website was brought back online and a number of entries in The Spiral Politic Database were released.